git-p4: fix submit in non --prepare-p4-only mode
git-p4: fix submit in non --prepare-p4-only mode

b4073bb3 (git-p4: Do not include diff in spec file when just
preparing p4, 2014-05-24) broke git p4 submit, here is a proper
fix, including proper handling for windows end of lines.

Signed-off-by: Maxime Coste <4d4d088be3247e0fb5aa761c79c9213aa248fc5f@gmail.com>
Acked-by: Pete Wyckoff <1a91d62f7ca67399625a4368a6ab5d4a3baa6073@padd.com>
Signed-off-by: Junio C Hamano <a6723cc3f76163bf7adb636a73ac3b0ceb3e6b9b@pobox.com>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git